#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <math.h>

int main() {
    int weight;
    double height;
    while ((scanf("%d %lf", &weight, &height)) != EOF)
    {
        height = height / 100.0;
        double bmi;
        bmi = weight / pow(height, 2);
        if (bmi < 18.5)
        {
            printf("Underweight\n");
        }
        if (bmi >= 18.5 && bmi <= 23.9)
        {
            printf("Normal\n");
        }
        if (bmi >= 23.9 && bmi <= 27.9)
        {
            printf("Overweight\n");
        }
        if (bmi > 27.9)
        {
            printf("Obese\n");
        }
    }

    return 0;
}